China Vitamin B12 Fabrik und Hersteller | Tecsun

Vitamin B12

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Vitamin B 12, also known as cobalt amine, is the only vitamin containing metal elements. In nature, vitamin B12 is synthesized by microorganisms. Higher animals and plants cannot make vitamin B12. Vitamin B12 is the only vitamin that requires the help of an intestinal secretion (endogenous factor) to be absorbed. Some people due to gastrointestinal abnormalities, lack of this endogenous factor, even if adequate dietary sources can also suffer from malignant anemia. There is basically no vi...


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Vitamin B 12, also known as cobalt amine, is the only vitamin containing metal elements. In nature, vitamin B12 is synthesized by microorganisms. Higher animals and plants cannot make vitamin B12. Vitamin B12 is the only vitamin that requires the help of an intestinal secretion (endogenous factor) to be absorbed. Some people due to gastrointestinal abnormalities, lack of this endogenous factor, even if adequate dietary sources can also suffer from malignant anemia. There is basically no vitamin B12 in vegetable foods. It stays in the gut for a long time and takes about three hours (most water-soluble vitamins take only a few seconds) to be absorbed. Vitamin B 12's main physiological function is to participate in the production of bone marrow red blood cells, prevent malignant anemia, prevent brain nerve damage. Vitamin B 12 is one of the last B vitamins to be found so far. Vitamin B12 is a polycyclic compound containing 3 valent cobalt. Four reduced pyrrole rings are linked together to form a Golin macroring (similar to porphyrin), which is the core of vitamin B12 molecule. Therefore, compounds containing this ring are referred to as Golin-like. Vitamin B12 is a light red acicular crystal which is easily soluble in water and ethanol. It is most stable under the condition of weak acid pH 4.5 and 5.0, and decomposes in strong acid (pH < 2) or alkaline solution, which can be destroyed to some extent in the event of heat. But short time high temperature disinfection loss is small, encounter bright light or ultraviolet ray is easy to be destroyed. The loss of ordinary cooking process is about 30%.

 

Produktname: VITAMIN 12  gvbrwsbhrwesbrwesbrwesbrwes
CAS: 68-19-9
MF: C63H88CoN14O14P
MW: 1355.37  
EINECS: 200-680-0
Vitamin B12, kurz VB12 genannt, auch als Cobalamin bekannt, und eines der B-Vitamine, ist eine Klasse komplexer organischer Verbindungen, die die Cobalt-Corrin-Klasse enthalten und dreiwertiges Cobalt in einer ähnlichen Porphyrin-Corrin-Ebene in der Mitte des Rings enthalten Es ist das größte und komplexeste Vitaminmolekül, das entdeckt wurde. Es ist auch das einzige Vitamin mit Metallionen. Der Kristall ist rot, er wird auch rotes Vitamin genannt. Die Pflanze enthält kein VB12 und kann kein VB12 produzieren. Die Leber ist die beste Quelle für VB12, dann aus Milch, Fleisch, Eiern, Fisch usw. VB12 ist ein essentielles Coenzym bei der Synthese von RNA und DNA. Das Fehlen von VB12 in vivo kann pathologische Veränderungen im Nervensystem wie dem peripheren Nerv und dem Zentralnervensystem verursachen.

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